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Old 12th August 2009, 11:04 AM   #1
piero7 is offline piero7  Italy
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Default 6N4P info

Any infos about this tube? It's a substitute of 6N2P?

Thanks
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Old 12th August 2009, 11:18 AM   #2
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Yes and no.

http://cityradio.narod.ru/spr/tubes/...hort/6n4p.html

vs.

http://cityradio.narod.ru/spr/tubes/...hort/6n2p.html

6N4P ~= 12AY7

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Old 12th August 2009, 11:38 AM   #3
piero7 is offline piero7  Italy
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Why yes and no?

Give a look here, they say yes...

Click the image to open in full size.
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Old 12th August 2009, 10:03 PM   #4
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What Geek said...

6N2P is similar to 12AX7, mu=80-100, gm=1400
6N4P is similar to 12AY7, mu=40-50, gm=1750
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Old 13th August 2009, 01:22 AM   #5
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OK, I have to clarify my response, as I replied from work where the firewall wouldn't let me see your schematic.

That schematic is referring to Chinese 6N2 and 6N4 tubes, not Russian 6N2P and 6N4P tubes.

As for whether the Chinese 6N4 really is a 6N2 or even 6N2P substitute, I can't find a datasheet.
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